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A turbine receives steam at 100 bar, 600°C and exhausts it at 2 bar from which it is used for process heating; AP and AK are negligible (a) For ideal Rankine engine, determine work (kJ/kg) steam rate (kg/hr), thermal efficiency and mean effective pressure. (b) For the actual engine, the brake efficiency is 84%; the driven generator efficiency is 93% and the rated output of the generator is 30 MW. Estimate the enthalpy h₂' and quality (or superheated) of the exhaust. Compute the combined work (kJ/kg), combined heat rate (kJ/kWh), and the total steam flow for the rated power (kg/hr). h2 = 505 kJ/kg P₂= 2 bar P₁ = 100 bar T₁ = 600°C T₂ = 120.2°C

A turbine receives steam at 100 bar, 600°C and exhausts it at 2 bar from which it is used for process heating; AP and AK are negligible (a) For ideal Rankine engine, determine work (kJ/kg) steam rate (kg/hr), thermal efficiency and mean effective pressure. (b) For the actual engine, the brake efficiency is 84%; the driven generator efficiency is 93% and the rated output of the generator is 30 MW. Estimate the enthalpy h₂' and quality (or superheated) of the exhaust. Compute the combined work (kJ/kg), combined heat rate (kJ/kWh), and the total steam flow for the rated power (kg/hr). h2 = 505 kJ/kg P₂= 2 bar P₁ = 100 bar T₁ = 600°C T₂ = 120.2°C

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A turbine receives steam at 100 bar, 600°C and exhausts it at 2 bar from which it is used for process heating; AP and AK are negligible (a) For ideal Rankine engine, determine work (kJ/kg) steam rate (kg/hr), thermal efficiency and mean effective pressure. (b) For the actual engine, the brake efficiency is 84%; the driven generator efficiency is 93% and the rated output of the generator is 30 MW. Estimate the enthalpy h₂' and quality (or superheated) of the exhaust. Compute the combined work (kJ/kg), combined heat rate (kJ/kWh), and the total steam flow for the rated power (kg/hr). P₂ = 2 bar h+2 = 505 kJ/kg P₁ = 100 bar T₁ = 600°C T₂ = 120.2°C
Transcribed Image Text:A turbine receives steam at 100 bar, 600°C and exhausts it at 2 bar from which it is used for process heating; AP and AK are negligible (a) For ideal Rankine engine, determine work (kJ/kg) steam rate (kg/hr), thermal efficiency and mean effective pressure. (b) For the actual engine, the brake efficiency is 84%; the driven generator efficiency is 93% and the rated output of the generator is 30 MW. Estimate the enthalpy h₂' and quality (or superheated) of the exhaust. Compute the combined work (kJ/kg), combined heat rate (kJ/kWh), and the total steam flow for the rated power (kg/hr). P₂ = 2 bar h+2 = 505 kJ/kg P₁ = 100 bar T₁ = 600°C T₂ = 120.2°C
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